Curved Rod Support Assembly for 180° Sash Opening
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Solution Overview
Problem
Existing concealed hinging systems for doors and windows fail to support the weight of a movable sash at opening angles greater than 90°, particularly at angles greater than 140°, due to interferences between the support strut and frame/sash components, leading to potential jamming and deformation.
Innovation Solution
A support assembly with a longitudinally extending rod that includes a plurality of straight and curved sections, allowing the sash to open up to 180° while transferring its weight to the frame, thus relieving the hinging system components from bearing the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a straight rod support strut is used, then the structure is simple, but it interferes with frame and sash components at opening angles greater than 90°, causing jamming and deformation
Solution Approach 1:
The support rod incorporates curved sections instead of being entirely straight. Specifically, the rod includes a first straight section, a first curved section, a second straight section, and a second curved section. This curved configuration allows the rod to navigate around frame and sash components during opening movements greater than 90°, preventing interference and jamming while maintaining structural integrity and support function.
2Adaptability or versatility
If the sash is opened at angles greater than 90°, then the opening capability is improved, but the weight of the sash rests solely on the hinging system components, causing potential deformation
Solution Approach 1:
The support rod acts as an intermediary element between the sash and the frame. It transfers and distributes the weight of the sash from the hinging system components to the frame structure. This intermediary support allows the sash to be opened to angles greater than 90° without overloading the hinging system, preventing deformation and ensuring reliable operation throughout the full range of motion.
Data Source
Figure 1~4
Figure 5A
Figure 5B
AI summary
A support assembly (1) for supporting a sash (100) on a door or window frame (200), comprising: a first support (2) configured to be fixed to a post (101) of a sash (100) of a door or window, a second support (3) configured to be fixed to a corresponding post (201) of a frame (200) of said door or window, a rod (4) extending longitudinally between a first end (4a) associated with said first support (2) and a second end (4b) associated with said second support (3), wherein the rod (4) extends longitudinally along a longitudinal broken line (Aa-Ab) comprising a plurality of straight segments and/or curved sections.